Cork insert girt



Ndv. 30, 1937. O HURXTHAL 2,100,959 4 CORK INSERT GIRT Filed July 12, 19ss 7 My ".5: .THHIII:

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Patented Nov. 30, 1937 UNITED STATES CORK INSERT GIR-T Alpheus O. Hurxthal, Philadelphia, Pa., assignor to Proctor & Schwartz, Incorporated, Philadelphia, Pa., a corporation of Pennsylvania Application July 12, 1935, Serial ,No. 31,127

Claims.

This invention relates to girts for conveyers used, for example, in drying apparatus, for cloth and other web or sheet material, such as disclosed in theapplicants prior Patent No. 1,996,020 dated March 26, 1935 and in other forms of loop driers, etc.

The present invention relates particularly to a girt having a material-engaging face composed of cork or similar or equivalent material having a low heat conductivity, and has for its object the provision of a girt which will reduce to a minimum or eliminate entirely marking of the goods at the places where the goods is engaged by the supporting conveyer as it passes through the drying apparatus.

Another object of the invention is to make the girts as a whole independently removable from the side chains of the conveyer and to make the facing material in a form which will be interchangeable and readily replaceable in order that a worn or damaged facing on any of the girts of the conveyer may be readily replaced.

Another object of the invention is to make the facing material and the girt body in such form as will permit the facing material to be reversed to present a new surface for engagement with the goods at such time as the one surface becomes worn, soiled or otherwise damaged in the course of usage. I,

The construction of the girt and the conveyer will be more fully described hereinafter, reference being had to the accompanying drawing, of

which:

Fig. l is a fragmentary plan view of the conr veyer with one of the girts made according to the principles of the present invention in place thereon;

Fig. 2 is a sectional elevation taken longitudinally of the girt on the line 22, Fig. 1;

Fig. 3 is a detached fragmentary perspective view, partly in section, of one end of the girt and the adjacent side chain shown in Figs. 1 and 2;

Fig. 4 is an enlarged transverse sectional elevation of the girt taken on the line 4-4, Fig. 2;

Fig. 5 is a transverse sectional elevation taken on the line 55, Fig. 2;

, Fig.6 is a view similar to Fig. 4 but showing a modified form of the invention; and

: Figs. '7 and 8 respectively illustrate other modifled forms of the girt;

As shown in Figs. 1 to 4, the preferred form of the inventioncomprises a metallic girt body A of substantially channel-shaped cross-sectionincluding a base orweb I, from which extend parallel side flanges 2; 2. At the upper ends of the side flanges 2, 2 are'inturned top flanges 3, 3 which extend substantially parallel to each other and to the base web I, longitudinally of the girt, in vertically spaced. relation to the base web I.

In each of the opposite ends of the channel girt is a fitting 5 (see Fig. 5) of a generally U-shaped construction including abar 6, which is adapted to be secured to the base web I of the girt by a bolt 1; a pair of vertical legs 8, 8 which project upwardly between the inner edges of the inturned flanges 3, 3 of the girt; a pair of outwardly projecting arms 9, 9 which rest on top of the inturned flanges 3, 3 respectively and which are connected to reversed or inturned arms Ill, l0 respectively by curved portions II, II to provide bearing openings or recesses l2, l2 for the reception of supporting studs I3, I3 extending inwardly of the conveyer from the side chains I5, l5 thereof respectively.

As shown in Figs. 1, 2 and 3, the studs I3, l3 constitute elongated extensions of the pintle pins which connect the links I4, M of the side chains l5 together and provide bearings for the conveyer rollers l1, ll of the conveyer. Obviously, the studs l3, 53 may be independent of the chain pintles and extend from the links M, I4 intermediate the ends thereof. 3

I The upper face of the girt, as formed by the inturned flanges 3, 3, is adapted to receive the facing of cork or other heat-resisting material of low conductivity and in the preferred form of the invention the cork is made into an elongated strip 20 in one piece or as aseries of shorter sections placed end to end. In that form of the invention shown in Figs. 1 to 4, the cork strip 20 is substantially rectangular in cross-section and presents two parallel though; oppositely disposed materialengaging surfaces 2 l 2 l, which preferably are flat but which may be arched transversely if desired.

The side edges 22, 22 of the rectangular strip 20 are provided-with longitudinal grooves 23, 23, disposedin-a plane substantially midway between the planes of the surfaces 2 l 2| of the strip, which are adapted to receive the inturned flanges 3, 3 of the body portion of the girt to support the bearing strip 29 thereon Without any additional securing means, and in such a manner that either of the surfaces 2|, 2| may be presented to the goods to be carried by the girts of the conveyer.

In order to prevent the material from shifting transversely of the conveyer outwardly over the side chains [5 each or any desired number of the girts are provided with end brackets 24, 24 having one leg 25 extendingvertically at the ends of the strip 20 to a position above the plane of the bearing surface 2! of the strip 28 anda leg 26' disposed on top of the baseB of the U-shaped bearing fitting 5 and secured in place thereon by the "bolt 1. The vertical legs ,25 engage the opposite ends of the strip 20 and insure against any relative longitudinal shifting between the strip 20 and the body of the girt. This is of value particularly when and if the strip 20 is composed of.- a series ofsections set end to end on the flanges 3, 3 to prevent the formation of goods suspended between the surfaces 2|, 2| of,

successively adjacent girts bellies, sags or is depressed between the girts as in the apparatus disclosed in the above noted prior patent.

If desired, to insure against the material from engaging the metallic part of the girt when the chains are ascending and/or descending the sides of the undulations of the conveyer path as shown in said prior patent, one or both sides of one of the faces 2| may be extended beyond the vertical plane of the side flanges 2, 2 of the girt body, as shown at 22a in Fig. 6, or the side walls may be made convergent as shown at 2a, 2 in Fig. '7, or the girt may be tubular as shown at 28 in Fig. 8 with the facing material made in the form of a tubular sleeve 30 to enclose the metallic tubular rod or girt 28.

In the case of a girt made tubular as in Fig. 8, the ends of the tube 28 may be made to revolve on or to be adjustably fixed to oppositely disposed axially aligned studs l3, l3 of the side chains l5, IE to present different bearing surfaces to the goods when desired.

From the above, it will be clear that in case the metallic girt is faced with a material of low heat conductivity to prevent the material from engaging the hot metallic portion of the girt which with some materials such as rayon and natural thread silk will cause the formation of marks on the goods as it is transported through the drying chamber on the supporting conveyer.

Another advantage attending the use of cork in addition to its low heat conductivity qualities is its tendency to hold the material against slipping as the conveyer ascends; and descends the opposite sides of the undulations of the conveyer course as disclosed in the above noted prior patent.

I claim:

1. A girt for web drier conveyers comprising a. metallic body and a body of cork partially enclosed by and projecting outwardly beyond said metallic body, said projection. affording a goods engaging surface on the girt.

2. A girt for web drier conveyers comprising a channel-shaped metallic body and a cork strip located in the open side of said body and projecting above the side edges of the channel for affording a goods engaging surface on the girt.

3. A girt for web drier conveyers comprising a channel-shaped metallic body including an open side provided with opposed inturned flanges, and a cork strip located in the open side of said body and having opposed side grooves for receiving said flanges and a goods engaging surface disposed in a plane spaced from that of said grooves and from said metallic body.

4. A girt for web drier conveyers comprising a channel-shaped metallic body including an open side provided with opposed inturned flanges, and a reversible cork strip located in the open side of said body and having opposed side grooves for receiving said flanges and a pair of opposed goods engaging surfaces respectively disposed in planes above and below and in spaced relation to the plane of said grooves and adapted to be reversed to position either of said surfaces outwardly beyond said metallic body.

5. A girt for web drier conveyers comprising a metallic body including a. base and side flanges extending from opposite edges thereof and an open side opposite said base, opposed inturned flanges on said side flanges, and a cork strip disposed in the open side of the channel between said side flanges and provided with side grooves for respectively receiving said inturned flanges and supporting said strip with one face in spaced relation to said base and an opposite face affording a goods engaging surface in a plane disposed above and beyond the tops of said side flanges and said plane of said inturned flanges.

6. A girt for web drier conveyers comprising a metallic body, a cork facing for and projecting from said body, a supporting bearing at each end of said body and arranged with its axis substantially parallel to the longitudinal axis of the girt, a pair of laterally spaced chains, studs on said chains and projecting laterally therefrom into said bearings, and. means for removably securing said bearings to said body.

7. A girt for web drier conveyers comprising a metallic body, a cork facing for and removably mounted on and projecting from said body, a supporting bearing at each end of said body and. arranged with its axis extending substantially parallel to the longitudinal axis of said girt, a pair of laterally spaced chains, studs on said chains and projecting laterally therefrom into said bearings, and means for removably securing said bearings to said body.

8. A girt for web drier conveyers comprising a metallic body, a reversible cork strip removably mounted on and projecting from said body, a supporting bearing at each end of said body and arranged with its axis extending substantially parallel to the longitudinal axis of said girt, a pair of laterally spaced chains, studs on said chains and projecting laterally therefrom into said bearings, and means for removably securing said bearings to said body.

9. A girt for web drier conveyers comprising a metallic body including a pair of opposed flanges, a reversible cork strip mounted between and having side grooves for receiving said flanges, supporting bearings at opposite ends of said body and arranged with their axes substantially parallel with the longitudinal axis of said girt, a pair of laterally spaced side chains, studs on the side chains and projecting into the supporting bear ings respectively, and means for removably securing the bearing to the body.

10. A girt for web drier conveyers comprising a metallic body including a pair of opposed flanges, a reversible cork strip loosely mounted between and having side grooves for receiving said flanges'abutments at the opposite ends of said girt for preventing relative longitudinal movement between the strip and the body, supporting bearings at opposite ends of said body and arranged with their axes substantially parallel to the longitudinal axis of said girt, a pair of laterally spaced side chains, studs on the side chains and projecting laterally therefrom into the supporting bearings respectively, and means for removably securing the bearings and said movement-preventing abutments to the body.

' ALPHEUS O. HURXTHAL. 

